PB'05 competition: run trace

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided in four parts:

LAUNCHER DATA
These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provide some useful information on the computer.
SOLVER DATA
This is the output of the solver (stdout and stderr).
WATCHER DATA
This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to 1200 seconds. After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
VERIFIER DATA
The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.

General information on the benchmark

Name	normalized-opb/web/www.ps.uni-sb.de/~walser/benchmarks/course-ass/normalized-ss97-6.opb
MD5SUM	5d90b7cbb5bac2aa14257b9c5448f25d
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	304
Optimality of the best value was proved	NO
Number of terms in the objective function	173
Biggest coefficient in the objective function	100
Number of bits for the biggest coefficient in the objective function	7
Sum of the numbers in the objective function	8448
Number of bits of the sum of numbers in the objective function	14
Biggest number in a constraint	100
Number of bits of the biggest number in a constraint	7
Biggest sum of numbers in a constraint	8448
Number of bits of the biggest sum of numbers	14
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.05184
Number of variables	257
Total number of constraints	353
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	353
Number of constraints which are nor clauses,nor cardinality constraints	0
Minimum length of a constraint	1
Maximum length of a constraint	44

Trace number 30506

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-05-25 17:35:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=21938 boxname=wulflinc27 idbench=356 idsolver=15 numberseed=0
MD5SUM SOLVER: 34d34154b8ad81f02ee98439942e0814  /oldhome/oroussel/solvers/minisat+_script
MD5SUM BENCH:  5d90b7cbb5bac2aa14257b9c5448f25d  /oldhome/oroussel/tmp/wulflinc27/normalized-ss97-6.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc27/normalized-ss97-6.opb
IDLAUNCH: 21938
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        364548 kB
Buffers:         34976 kB
Cached:         613444 kB
SwapCached:        640 kB
Active:         107452 kB
Inactive:       543360 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        364296 kB
SwapTotal:     2097892 kB
SwapFree:      2096760 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5648 kB
Slab:            13532 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-25 17:35:38 (client local time) WITH STATUS 30 IN 1.85672 SECONDS
stats: 21938 0 1.85672 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 180 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: ####################################################################################
c   -- Clauses(.)/Splits(s): (none)
c ---[ 179]---> Sorter-cost:  694     Base:
c ---[ 178]---> Sorter-cost:  694     Base:
c ---[ 177]---> Sorter-cost:  694     Base:
c ---[ 176]---> Sorter-cost:  694     Base:
c ---[ 175]---> Sorter-cost:  610     Base:
c ---[ 174]---> Sorter-cost:  610     Base:
c ---[ 173]---> Sorter-cost:  262     Base:
c ---[ 172]---> Sorter-cost:  262     Base:
c ---[ 171]---> Sorter-cost:  262     Base:
c ---[ 170]---> Sorter-cost:  262     Base:
c ---[ 169]---> Sorter-cost:  170     Base:
c ---[ 168]---> Sorter-cost:  170     Base:
c ---[ 166]---> BDD-cost:    5
c ---[ 164]---> BDD-cost:    1
c ---[ 162]---> BDD-cost:    5
c ---[ 160]---> BDD-cost:    1
c ---[ 158]---> BDD-cost:    5
c ---[ 156]---> BDD-cost:    1
c ---[ 154]---> BDD-cost:    5
c ---[ 152]---> BDD-cost:    1
c ---[ 150]---> BDD-cost:    5
c ---[ 148]---> BDD-cost:    1
c ---[ 146]---> BDD-cost:    5
c ---[ 144]---> BDD-cost:    1
c ---[ 142]---> BDD-cost:    5
c ---[ 140]---> BDD-cost:    1
c ---[ 138]---> BDD-cost:    5
c ---[ 136]---> BDD-cost:    1
c ---[ 134]---> BDD-cost:    5
c ---[ 132]---> BDD-cost:    1
c ---[ 130]---> BDD-cost:    5
c ---[ 128]---> BDD-cost:    1
c ---[ 126]---> BDD-cost:    5
c ---[ 124]---> BDD-cost:    1
c ---[ 122]---> BDD-cost:    5
c ---[ 120]---> BDD-cost:    1
c ---[ 118]---> BDD-cost:    5
c ---[ 116]---> BDD-cost:    5
c ---[ 114]---> BDD-cost:    5
c ---[ 112]---> BDD-cost:    5
c ---[ 110]---> BDD-cost:    1
c ---[ 108]---> BDD-cost:    5
c ---[ 106]---> BDD-cost:    5
c ---[ 104]---> BDD-cost:    5
c ---[ 102]---> BDD-cost:    5
c ---[ 100]---> BDD-cost:    5
c ---[  98]---> BDD-cost:    5
c ---[  96]---> BDD-cost:    5
c ---[  94]---> BDD-cost:    5
c ---[  92]---> BDD-cost:    1
c ---[  90]---> BDD-cost:    5
c ---[  88]---> BDD-cost:    1
c ---[  86]---> BDD-cost:    5
c ---[  84]---> BDD-cost:    1
c ---[  82]---> BDD-cost:    1
c ---[  80]---> BDD-cost:    5
c ---[  78]---> BDD-cost:    1
c ---[  76]---> BDD-cost:    5
c ---[  74]---> BDD-cost:    1
c ---[  72]---> BDD-cost:    1
c ---[  70]---> BDD-cost:    5
c ---[  68]---> BDD-cost:    1
c ---[  66]---> BDD-cost:    1
c ---[  64]---> BDD-cost:    5
c ---[  62]---> BDD-cost:    1
c ---[  60]---> BDD-cost:    5
c ---[  58]---> BDD-cost:    1
c ---[  56]---> BDD-cost:    5
c ---[  54]---> BDD-cost:    1
c ---[  52]---> BDD-cost:    1
c ---[  50]---> BDD-cost:    5
c ---[  48]---> BDD-cost:    1
c ---[  46]---> BDD-cost:    5
c ---[  44]---> BDD-cost:    1
c ---[  42]---> BDD-cost:    5
c ---[  40]---> BDD-cost:    1
c ---[  38]---> BDD-cost:    5
c ---[  36]---> BDD-cost:    1
c ---[  34]---> BDD-cost:    5
c ---[  32]---> BDD-cost:    1
c ---[  30]---> BDD-cost:    5
c ---[  28]---> BDD-cost:    1
c ---[  26]---> BDD-cost:    5
c ---[  24]---> BDD-cost:    1
c ---[  22]---> BDD-cost:    5
c ---[  20]---> BDD-cost:    1
c ---[  18]---> BDD-cost:    1
c ---[  16]---> BDD-cost:    1
c ---[  14]---> BDD-cost:    5
c ---[  12]---> BDD-cost:    1
c ---[  10]---> BDD-cost:    5
c ---[   8]---> BDD-cost:    1
c ---[   6]---> BDD-cost:    5
c ---[   4]---> BDD-cost:    1
c ---[   2]---> BDD-cost:    5
c ---[   0]---> BDD-cost:    1
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |    8990    21348 |    2996       0        0     nan |  0.000 % |
c |       101 |    8990    21348 |    3295     101     1548    15.3 |  3.250 % |
c ==============================================================================
c [1mFound solution: 2319[0m
c ---[   0]---> Sorter-cost: 4057     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       116 |   16857    39761 |    5619     116     1659    14.3 |  3.250 % |
c |       217 |   16830    39701 |    6180     216     2551    11.8 |  1.847 % |
c ==============================================================================
c [1mFound solution: 1620[0m
c ---[   0]---> Sorter-cost:    5     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       305 |   16129    38119 |    5376     282     2842    10.1 |  1.847 % |
c ==============================================================================
c [1mFound solution: 1218[0m
c ---[   0]---> Sorter-cost:    6     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       321 |   16099    38078 |    5366     293     2892     9.9 |  1.847 % |
c |       422 |   14747    34965 |    5902     360     3247     9.0 | 11.926 % |
c ==============================================================================
c [1mFound solution: 1117[0m
c ---[   0]---> Sorter-cost:    6     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       541 |   14462    34322 |    4820     465     3814     8.2 | 11.926 % |
c ==============================================================================
c [1mFound solution: 514[0m
c ---[   0]---> Sorter-cost:    5     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       552 |   14488    34379 |    4829     476     3881     8.2 | 11.926 % |
c ==============================================================================
c [1mFound solution: 512[0m
c ---[   0]---> Sorter-cost:    5     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       582 |   14426    34242 |    4808     500     3952     7.9 | 11.926 % |
c ==============================================================================
c [1mFound solution: 410[0m
c ---[   0]---> Sorter-cost:    2     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       603 |   14420    34227 |    4806     520     4051     7.8 | 11.926 % |
c ==============================================================================
c [1mFound solution: 409[0m
c ---[   0]---> Sorter-cost:    5     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       606 |   14440    34276 |    4813     523     4078     7.8 | 11.926 % |
c ==============================================================================
c [1mFound solution: 408[0m
c ---[   0]---> Sorter-cost:    5     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       611 |   14446    34293 |    4815     528     4101     7.8 | 11.926 % |
c ==============================================================================
c [1mFound solution: 407[0m
c ---[   0]---> Sorter-cost:    5     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       616 |   14451    34306 |    4817     533     4153     7.8 | 11.926 % |
c ==============================================================================
c [1mFound solution: 406[0m
c ---[   0]---> Sorter-cost:    5     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       681 |   14467    34352 |    4822     595     4662     7.8 | 11.926 % |
c ==============================================================================
c [1mFound solution: 309[0m
c ---[   0]---> Sorter-cost:    2     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       722 |    8911    21328 |    2970     355     2347     6.6 | 11.926 % |
c ==============================================================================
c [1mFound solution: 307[0m
c ---[   0]---> Sorter-cost: 2005     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       729 |   13107    31067 |    4369     362     2365     6.5 | 11.926 % |
c ==============================================================================
c [1mFound solution: 306[0m
c ---[   0]---> Sorter-cost:   72     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       807 |   11620    27699 |    3873     397     2613     6.6 | 11.926 % |
c ==============================================================================
c [1mFound solution: 305[0m
c ---[   0]---> Sorter-cost:    6     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       829 |   11630    27730 |    3876     416     2725     6.6 | 11.926 % |
c ==============================================================================
c [1mFound solution: 304[0m
c ---[   0]---> Sorter-cost:    6     Base: 5 5 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       864 |   11488    27413 |    3829     444     2861     6.4 | 11.926 % |
c ==============================================================================
c [1mOptimal solution: 304[0m
s OPTIMUM FOUND
v v133 v177 -v217 v3 v179 v7 v8 -v96 -v184 v224 -v185 v225 v10 -v98 -v142 v186 -v226 v99 v12 v13 v14 -v58 v103 v60 -v104 -v148 v229 v61 v19 -v107 -v108 v152 v21 -v109 -v153 -v110 v154 v111 v191 -v231 -v26 v70 v236 v117 v197 -v237 -v198 v238 v118 v199 -v239 v163 v120 -v201 v241 -v202 v242 -v121 -v203 v243 -v123 v167 v205 -v245 v124 v246 v37 -v125 -v169 v207 -v247 v126 v248 v39 -v171 v249 -v212 v252 v129 -v213 v253 v130 v214 -v254 v131 v215 -v255 v132 v256 -v1 -v45 -v89 -v90 -v178 -v47 -v219 -v221 -v223 -v52 -v140 -v11 -v55 -v143 -v227 -v56 -v144 -v228 -v57 -v145 -v102 -v146 -v15 -v147 -v17 -v149 -v18 -v62 -v106 v150 -v151 -v65 -v23 -v67 -v155 -v24 v68 -v112 -v156 -v190 v230 -v158 -v232 -v233 -v234 -v235 -v29 -v73 -v161 -v30 -v74 -v162 -v75 -v119 -v240 -v32 -v76 -v164 -v33 -v165 -v34 -v78 -v244 -v79 -v80 -v168 -v81 -v38 -v82 -v170 -v83 -v127 -v41 -v85 -v173 -v42 -v86 -v174 -v43 -v87 -v175 -v176 -v216 one -v2 -v4 -v5 -v6 -v9 -v16 -v20 -v22 -v25 -v27 -v28 -v31 -v35 -v36 -v40 -v44 -v46 -v48 -v49 -v50 -v51 v53 -v54 -v59 -v63 -v64 -v66 -v69 v71 v72 v77 v84 -v88 -v91 -v92 -v93 -v94 -v95 -v97 -v100 -v101 -v105 -v113 -v114 -v115 -v116 -v122 -v128 v134 -v135 v136 v137 v138 -v139 -v141 v157 -v159 -v160 v166 -v172 -v180 v181 -v182 v183 v187 v188 -v189 v192 v193 v194 v195 -v196 v200 v204 -v206 -v208 -v209 v210 v211 v218 v220 v222 -v250 -v251
c _______________________________________________________________________________
c 
c restarts              : 20
c conflicts             : 877            (485 /sec)
c decisions             : 13603          (7529 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 1.80672 s
c _______________________________________________________________________________
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.84 0.94 0.97 2/54 20248
Raw data (stat): 20248 (runsolver) R 20247 3394 3393 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 840718260 1052672 99 4294967295 134512640 135381576 3221224496 3221219704 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+1.86594 s]
Raw data (loadavg): 0.84 0.94 0.97 1/53 20252
Raw data (stat): 20248 (runsolver) R 20247 3394 3393 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 840718260 1052672 99 4294967295 134512640 135381576 3221224496 3221219704 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 30
Real time (s): 1.86564
CPU time (s): 1.85672
CPU user time (s): 1.81972
CPU system time (s): 0.036994
CPU usage (%): 99.5216
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	304
#### END VERIFIER DATA ####